Pattern and clinical profile of children with complex cardiac anomaly at University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu State, Nigeria.

BACKGROUND: Complex congenital cardiac abnormalities are rare among children and contribute to mortality and morbidity. The prevalence and pattern of presentation vary from place to place. MATERIALS AND METHODS: The objective of this study was to determine the clinical profile and pattern of presentation of complex congenital cardiac malformations among children attending a tertiary hospital in Enugu State. A cross-sectional retrospective study in which a review of the records of children who attended the children outpatient clinic of University of Nigeria Teaching Hospital (UNTH), Ituku-Ozalla, Enugu State over a 5-year period (January 2007-June 2012) was undertaken. RESULTS: Thirty one thousand seven hundred and ninety-five (31,795) children attended the outpatient clinic of the hospital over the study period, of these, 65 had cardiac diseases, from which 16 were found to have congenital complex cardiac abnormalities of various types, giving a prevalence of 0.05%. Complex abnormalities seen in these children are Tricuspid atresia with various associations, cor triatriatum, single ventricle, and large ASD (atrio-septal defect) with complete AVCD, cor triatriatum sinistrum with cardiomyopathy, DORV (double outlet right ventricle) with left sided aorta, hypoplastic tricuspid valve with a PDA (patent ductus artriosus), TOF (tetralogy of fallot), prolapse of aortic valve, and pulmonary regurgitation. One of these complex cardiac anomalies presented with Turner's syndrome and another with VACTERAL association. CONCLUSIONS: The results of this study show that 0.05% of children who presented at cardiology clinic of a teaching hospital in Enugu State had congenital complex cardiac abnormalities and that the commonest forms seen were those with cor triatriatum and TOF.